Shoe-edging machine.



` FREEMAN. sHoE EDGING MACHINE. APPLqcATlqN FILED No1/.29. 1915.

9299.97? Patented Dea. 19, 1916.

:FRANK B. Fanti/ratp,

OF DAYTON, KENTUCKY, ASSIGNOR TO` THE KROHN FECHHEIMER COMPANY, OF CINCINNATI, OHIO. A CORPORATION F OHIO.

SHOE-ED GING 'MACHINE Specification of Letters Patent.

Patented Dec. 19, 1916.

Application filed November 29, 1915. Serial No. 63,917.

To all whom it may concern y Edging Machines, of which Be it known that I, FRAM; B.` FREEMAN, a citizen of the United States, and a resident of Dayton, in the countytof Campbell and State of Kentucky, have invented certain new and useful Improvements in Shoethe following is a full, clear, and exact description, reference being had to the accompanying drawings, forming-part of this specification.

My invention relates to shoe 'edging machines in which an edging tool is caused to l' vibrate rapidly and is adapted to be applied rapid working tool for the work.

in the presence of `of a shoe 'sole after ened.

. As is well known in the art, the gums and stains empl fed to blacken the edge of the sole of a shoe after it has been properly trimmed require to be burnished into the leather by means of rubbing them with a proper edging tool in the presence of heat, thereby causing the gums and stains to be absorbed into the leather owing to the melting and rubbing thereof. There have been many devices in the art for this pur ose, some of which are cumbersome and di cult to operate and others very vexpensive in construction.

It is the object. of my invention to provide a device for causing vibration of an edging tool Which is simple to operate, durable and inexpensive, and in which a square vibratory motion is given to the edging tool as a mild heat to the edge the same has been blackdistinguished from a pendulum or a crank` motion, that is now generally the case in theV art, thereby providing a smoother and more These objects I accomplish by that certain construction and arrangement of parts to be hereinafter more specifically pointed out andl claimed.

In the drawings, Figure 1 is a side elevation of the device, partly broken away so as to show a portion of the vibrating bar in section. Fig. 2 is a top plan view of the base plate of the device. Fig. 3 is a detail elevation of the tool holder and tools, broken away at the center. Fig. 4 is a front elevational detail of the device.

Mounted on a hollow standard 1, which serves as a conduit fo.' the gas, if desired, is the base plate 2 of the vibrator device.

ard and serves to provide a small flame 4 for the requisiteD heating during the edging operation.

The base plate 2 has a Tslot 5 in its upper surface, and in this slotv lies the T-shaped vibrating loal1 having the arm portion 6 and the head portion 7. The relative sizes of slot and bar are such that the bar may slide laterally in the slot, but will be held against moving in and out by interengagement of the head or T-portions of the bar and slot. Mounted over the base plate 2 is the top plate 8 of the device, which has a vertical Ijournal or boss 9 for revolubly mounting the vertical shaft 1C. At the top of the shaft 1U is fixed the horizontal driving pulley 11, which is adapted to be operated by a belt or cord 12, the belt being-brought around two vertical pulleys 13. These pulleys are ournaled on each side of an arm 14, mounted` pierced with a hole 18 is seated in this slot.

The eccentric stud 15 isadapted to engage. the hole 1S in the sliding block.

It can be seen that when the shaft 10 is rotated, the T-bar will be vibrated laterally with a perfectly square motion, all the balance of the motion of the eccentric stud being taken up by the sliding block 17 moving in Aits slot in the bar and the bar being held against any but lateral lnotion by its engagement in the T portion of the slot.

Mounted in the outer end of the portion 6 of the T-bar, is a pin 19, having a cap 20 on the end, preferably screwed into it. On this pin is slidably mounted a tool holder 21, having ianges 22 to lit over them and a. spring 23 to hold it in place engaging the bar by its flanges. The spring 23 may be provided with a chamber 23a (Fi 3) in the tool holder. On this tool hol er are located the two extending posts 24, each having a key 25 on it and a spring 26 coiled around it. The tubular ends 27 of the edging tools 28 fit over the posts and have slots to 'engage the keys. The ends 27 vof the tools are notched to engage spring fingers 29 on the holder, thereby holding them in place.

It can be seen that the tools may be pushed over the postson the holder and will then snap intd place. The holder can be pulled out against the spring pressure at 23, free ing its ianges 22 from the bar, so that it may be reversed to present either of the two tools that is desired to the work, without stopping the bar from vibrating.

A slot is provided in the top portion 8 of the casing of the device, and a pin 30 mounted on the boss 9 over the top of the slot serves as a mounting for a roller 31. This roller is of a size to extend down to just short of a contact with the bar member 6.

In operating the machine, the edging tools to be used on the work at hand are snapped down onto the holder. The operator then presses the shoe sole to be worked on against the lower edging tool. This pressing up moves up slightly the bar portion 6, thereby causing the roller 31 to serve as a roller bearing for the upper side of the bar portionl 6. The shoe is then moved around manually by the operator, so as to accomplishthe edging operation referred to above.

Tools may be changed for varying pieces of work, and the tool holder may be reversed as above described.

It is readily seen that the vibrator 'now shown. and described is of simple structure and effective operation, fulfilling all the necessary 4functions of an edging tool vibrator in a safe and eflicient manner.

It is to be noted also that the design of the machine is such as to completely safeguard an operative, all moving parts being inclosed.

`Having thus described my invention, what I claim as new and desire to secure by Letters Patent, istl. 'In a device of the character described, a base plate, means for mounting the same, a slot in the base plate, a bar in the slot extending beyond the base plate, said bar and slot each having a T-portion, a top plate, means therein y for journaling a vertical shaft, a sliding member in the bar, and an eccentric stud .on the shaft to engage said sliding member, to cause the bar to slide in the slot, for the purpose described. 2. In a device of the character described, in combination with a easing, and a member slidingly mounted therein so as to slide laterally only, a depending tool secured to said member and against which the work is to be pressed, a roller bearing, and means for mounting the same in the casing so as to contact with the upper side of the sliding member. I v

3. In a device of the character described, in combination with a casing, and a member slidingly mounted therein so as to slide laterally only, a depending tool .secured'to said member and against which the work is to be pressed, a roller bearing, and means for mounting the same in the casing so as to contact with the upper side of the sliding member when the said member is strained 'upwardly by the upward pressure of thel work.

' FRANK B. FREEMAN. 

